lily/voice-group-regs.cc

   1 /*
   2   voicegroup.cc -- implement Voice_group_registers
   3
   4   source file of the LilyPond music typesetter
   5
   6   (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
   7 */
   8 #include "voice.hh"
   9 #include "proto.hh"
  10 #include "plist.hh"
  11 #include "musical-request.hh"
  12 #include "voice-regs.hh"
  13 #include "voice-group-regs.hh"
  14 #include "register.hh"
  15 #include "text-reg.hh"
  16 #include "stem-beam-reg.hh"
  17 #include "script-reg.hh"
  18 #include "complex-walker.hh"
  19 #include "command-request.hh"
  20 #include "debug.hh"
  21 #include "dynamic-reg.hh"
  22
  23 static int temp_id_count;
  24
  25 Voice_group_registers::Voice_group_registers(String id)
  26 {
  27     add(new Dynamic_register);
  28     add(new Text_register);
  29     add(new Stem_beam_register);
  30     add(new Script_register);
  31
  32     if (id=="")                 // UGH
  33         id = __FUNCTION__ + String(temp_id_count++);
  34     group_id_str_ = id;
  35     termination_mom_ = 0;
  36 }
  37
  38 bool
  39 Voice_group_registers::try_request(Request*r_l)
  40 {
  41     for (int i=0; i < voice_regs_l_.size(); i++) {
  42         if (voice_regs_l_[i]->voice_l_ == r_l->voice_l())
  43             goto gotcha;
  44     }
  45     return false;
  46 gotcha:
  47     if (r_l->groupfeature()) {
  48         set_feature(Features::dir(r_l->groupfeature()->stemdir_i_));
  49         return true;
  50     }
  51     return Register_group_register::try_request(r_l);
  52 }
  53
  54
  55 bool
  56 Voice_group_registers::static_acceptable_request_b(Request*r)
  57 {
  58     return (r->stem() || r->beam() || r->text() || r->script() ||
  59             r->groupfeature());
  60 }
  61
  62 void
  63 Voice_group_registers::terminate_register(Request_register*r_l)
  64 {
  65     if (r_l->name() == Voice_registers::static_name()) {
  66         for (int i=0; i <voice_regs_l_.size(); i++) {
  67             if (r_l == voice_regs_l_[i])
  68                 voice_regs_l_.del(i);
  69             mtor << "Terminating voice_reg " ;
  70             Register_group_register::terminate_register(r_l);
  71             return;
  72         }
  73     }
  74     assert(false);
  75 }
  76 IMPLEMENT_STATIC_NAME(Voice_group_registers);
  77
  78 void
  79 Voice_group_registers::do_print() const
  80 {
  81 #ifndef NPRINT
  82     mtor << "ID: " << group_id_str_<<"\n";
  83     mtor << "stopping at " << termination_mom_ << "\n";
  84     Register_group_register::do_print();
  85 #endif
  86 }
  87 void
  88 Voice_group_registers::add(Request_register*r_l)
  89 {
  90     Register_group_register::add(r_l);
  91     if (r_l->name() == Voice_registers::static_name()) {
  92         Voice_registers * vregs_l = (Voice_registers*)r_l;
  93         voice_regs_l_.push( vregs_l );
  94         Voice *v_l = vregs_l->voice_l_;
  95         termination_mom_ = termination_mom_ >? v_l -> last();
  96         mtor << "adding Voice_registers, now terminating at " <<
  97             termination_mom_<< "\n";
  98     }
  99 }
 100
 101 void
 102 Voice_group_registers::post_move_processing()
 103 {
 104     if ( get_staff_info().time_C_ ->when_ > termination_mom_ ){
 105         mtor << "Terminating voice_group\n";
 106         daddy_reg_l_->terminate_register(this);
 107     }
 108     Register_group_register::post_move_processing();
 109 }